Keysight E8491B IEEE 1394 PC Link to VXIConfiguration and User Guide131 IntroductionUsing the IEEE 1394 Serial Bus in VXI SystemsThe IEEE 1394 Serial Bus (FireWire) is a high-speed bus that has beenimplemented as an I/O interface between external PCs and Keysight VXIsystems. The bus links the PC backplane to the VXI mainframe backplane. Thismanual describes the implementation, configuration, and use of this interface.Component OverviewImplementation of the IEEE 1394 serial bus as an I/O interface for Keysight VXIsystems is provided through three components and two operating systems:– Keysight E8491B PC Link to VXI Interconnect– OHCI-compatible PCI-to-IEEE 1394 Host Adapter– Keysight I/O Libraries– WIN 95 and WIN NT operating systemsThe Keysight E8491B PC Link to VXI InterconnectThe E8491B is the VXI hardware that links the VXI mainframe backplane to theIEEE 1394 serial bus. The E8491B is a 1-slot, C-size, message-based device thatis installed in mainframe slot 0.The OHCI-Compatible PCI-to-IEEE 1394 Host AdapterThe OHCI PCI-to-1394 Host Adapter card is installed in the PC and links thecomputer’s (PCI) backplane to the IEEE 1394 bus. The OHCI adapter has threeexternal IEEE 1394 ports and can support up to 16 E8491Bs.The Keysight I/O LibrariesThe Keysight I/O Libraries provide the Keysight VISA and Keysight SICL driversrequired to use the E8491B. Included with the libraries are the drivers for theOHCI-compatible host adapter.